package work13;

import work20.Missile;

import java.awt.*;
import java.awt.event.KeyEvent;

public class Tank {
    public static final int XSPEED = 5;
    public static final int YSPEED = 5;
    public static final int WIDTH = 30;
    public static final int HEIGHT = 30;
    TankClient tc=null;
    private int x, y;
    private boolean bL = false, bU = false, bR = false, bD = false;
    public enum Direction {L, LU, U, RU, R, RD, D, LD, STOP};
    private Direction dir = Direction.STOP;
    private Direction ptDir = Direction.D;
    public Tank(int x, int y) {
        this.x = x;
        this.y = y;
    }
    public Tank(int x, int y,TankClient tc) {
        this(x,y);
        this.tc=tc;
    }
    public void draw(Graphics g) {
        Color c = g.getColor();
        g.setColor(Color.RED);
        g.fillOval(x, y, WIDTH, HEIGHT);
        g.setColor(c);
        switch (ptDir) {
            case L:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2,x,y+Tank.HEIGHT / 2);
                break;
            case LU:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x, y);
                break;
            case U:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH / 2, y);
                break;
            case RU:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH, y);
                break;
            case R:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH, y + Tank.HEIGHT / 2);
                break;
            case RD:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH, y + Tank.HEIGHT);
                break;
            case D:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH / 2, y + Tank.HEIGHT);
                break;
            case LD:
                g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x, y + Tank.HEIGHT);
                break;
            case STOP:
                break;
        }

        move();
    }

    void move() {
        switch (dir){
            case L:
                x-=XSPEED;
                break;
            case LU:
                x-=XSPEED;
                y-=YSPEED;
                break;
            case U:
                y-=YSPEED;
                break;
            case RU:
                x += XSPEED;
                y -= YSPEED;
                break;
            case R:
                x += XSPEED;
                break;
            case RD:
                x += XSPEED;
                y += YSPEED;
                break;
            case D:
                y += YSPEED;
                break;
            case LD:
                x -= XSPEED;
                y += YSPEED;
                break;
            case STOP:
                break;
        }
        if(this.dir!=Direction.STOP){
            this.ptDir=this.dir;
        }
    }
    public void keyPressed (KeyEvent e){
        int key = e.getKeyCode();
        switch (key) {
            case KeyEvent.VK_LEFT -> bL=true;
            case KeyEvent.VK_UP -> bU=true;
            case KeyEvent.VK_RIGHT -> bR=true;
            case KeyEvent.VK_DOWN -> bD=true;
        }
        locateDirection();
    }

    private Missile fire() {
        int x = this.x + Tank.WIDTH / 2 - Missile.WIDTH / 2;
        int y = this.y + Tank.HEIGHT /2 - Missile.WIDTH / 2;
        Missile m = new Missile(x, y, ptDir);
        tc.missiles.add(m);
        return m;
    }

    public void kyeReleased(KeyEvent e) { int key = e.getKeyCode(); switch(key) {
        case KeyEvent.VK_CONTROL:
            fire();
            break;
        case KeyEvent.VK_LEFT: bL = false;
            break;
        case KeyEvent.VK_UP: bU = false; break;
        case KeyEvent.VK_RIGHT: bR = false;
            break;
        case KeyEvent.VK_DOWN: bD = false;
            break;
    }
        locateDirection();
    }

    void locateDirection() {
        if (bL && !bU && !bR && !bD) dir = Direction.L;
        else if (bL && bU && !bR && !bD) dir = Direction.LU;
        else if (!bL && bU && !bR && !bD) dir = Direction.U;
        else if (!bL && bU && bR && !bD) dir = Direction.RU;
        else if (!bL && !bU && bR && !bD) dir = Direction.R;
        else if (!bL && !bU && bR && bD) dir = Direction.RD;
        else if (!bL && !bU && !bR && bD) dir = Direction.D;
        else if (bL && !bU && !bR && bD) dir = Direction.LD;
        else if (!bL && !bU && !bR && !bD) dir = Direction.STOP;
    }
}
